LOTHAR WALTHER M20 4MM LUGER PISTOL CONVERSION KIT

4mm; Manufactured for indoor shooting practice and competitions, for Luger pistols chambered in .30 Luger (Parabellum) with a 4.75 inch barrel. Includes the barrel insert, 2 chamber inserts, ejector tool, bore brush and 20+ rounds of cartridges. Includes the original box. Appears new, un-used. These small cartridges are still available from RWS.,